Some of our liquid solution products are solved in solvents that can slowly evaporate through dropper caps e.g. ethanol. To prevent evaporation and improve long term storage we use air-tight polycone caps for these products. For convenience, so you can still measure the solution we include a complimentary 1mL pipette with these non-dropper cap products. Your liquid product should always have either a dropper cap or a 1ml pipette for measurement.
Why does my solution not come with a dropper cap?
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